Sun Pharmaceutical Industries Ltd. (Reuters: SUN.BO, Bloomberg: SUNP IN, NSE: SUNPHARMA, BSE: 524715, "Sun Pharma" and includes its subsidiaries and/or associate companies) today announced that one of its wholly-owned subsidiaries has received approval from the Ministry of Health, Labour and Welfare (MHLW), Japan for ILUMYA (tildrakizumab) for the treatment of plaque psoriasis in adult patients who have an inadequate response to conventional therapies. Japan has approximately 430,000 people currently suffering from psoriasis.
ILUMYA is a humanized lgG1/k monoclonal antibody designed to selectively bind to the p19 subunit of IL-23 and inhibit its interaction with the IL-23 receptor, leading to inhibition of the release of proinflammatory cytokines and chemokines.
Junichi Nakamichi, Country Head, Sun Pharma Japan, said, "ILUMYA is the first innovative drug that Sun Pharma plans to launch in Japan. It was extensively tested in Japanese patients as part of ILUMYA's global clinical development program. The drug offers a new treatment option with only one injection every 12 weeks for Japanese patients who struggle everyday with the chronic nature of plaque psoriasis. It showed sustained efficacy for over 4 years and has safety profiles over 4 years with low rates of severe infections, malignancies and MACEs. This approval adds a biologic product to our existing strong dermatology portfolio in Japan. We will leverage Sun Pharma Japan's robust marketing network to make ILUMYA, a safe and efficacious product, available to dermatologists and patients in Japan."
ILUMYA is one of the key specialty products of Sun Pharma and it was approved by US FDA in March 2018 while the European Commission approved it in September 2018.
The MHLW approval of ILUMYA for the treatment of plaque psoriasis was supported by data from the pivotal Phase-3 reSURFACE clinical development program. In the two multicentre, randomized, doubleblind, placebo-controlled trials (reSURFACE 1 and reSURFACE 2), 1862 adult patients were enrolled and treated with ILUMYA (N=1238), etanercept (N=313) or placebo (N=310). Both Phase-3 studies met the primary efficacy endpoints, demonstrating significant clinical improvement with ILUMYA 100 mg compared to placebo or etanercept when measured by at least 75 percent reduction in baseline psoriasis severity (Psoriasis Area Sensitivity Index or PASI 75) and Physician's Global Assessment (PGA) score of "clear" or "minimal" at week 12 after two doses.
The most common adverse reactions observed with ILUMYA in the pooled data from one Phase 2 and two Phase 3 studies in psoriasis patients for the placebo controlled period (16 weeks for the Phase 2 study and 12 weeks for the Phase 3 studies) were nasopharyngitis, headache, and site injection pain. Most adverse reactions were considered mild and no adverse reaction led to discontinuation of treatment in >1% of patients.
After 64-week base study of reSURFACE 1, a total of 120 Japanese patients entered the reSURFACE 1 extension study and 101 patients completed the extension study for 148 weeks.
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